<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <form action="">
        <ur>
            <li>邮箱：<input type="email" placeholder="...@qq.com" autofocus></li>
            <li>网址：<input type="url"></li>
            <li>日期：<input type="date"></li>
            <li>日期：<input type="time"></li>
            <li>数量：<input type="number"></li>
            <!-- required表示该栏里面一定要填东西才可以提交 -->
            <li>手机号码：<input type="tel" required></li>
            <li>搜索：<input type="search"></li>
            <li>颜色：<input type="color"></li>
            <li><input type="submit" value="提交"></li>
        </ur>
    </form>

</body>

</html>